Add limitation clarification for usage of AsmPrepareThunk16(), AsmThunk16(), AsmPrepa...

[mirror_edk2.git] / MdePkg / Library / BaseLib / Ia32 / ReadGs.c

diff --git a/MdePkg/Library/BaseLib/Ia32/ReadGs.c b/MdePkg/Library/BaseLib/Ia32/ReadGs.c
index 47da6e716a658e4cd4a079e1fa714d7ba39be010..9995bcb16e03794e34d81784eec93c88b720aa70 100644 (file)
--- a/MdePkg/Library/BaseLib/Ia32/ReadGs.c
+++ b/MdePkg/Library/BaseLib/Ia32/ReadGs.c
@@ -1,7 +1,7 @@
 /** @file\r
   AsmReadGs function\r
 \r
-  Copyright (c) 2006, Intel Corporation<BR>\r
+  Copyright (c) 2006 - 2008, Intel Corporation<BR>\r
   All rights reserved. This program and the accompanying materials\r
   are licensed and made available under the terms and conditions of the BSD License\r
   which accompanies this distribution.  The full text of the license may be found at\r
@@ -12,8 +12,18 @@
 \r
 **/\r
 \r
-#if _MSC_EXTENSIONS\r
 \r
+\r
+\r
+/**\r
+  Reads the current value of GS Data Segment Register (GS).\r
+\r
+  Reads and returns the current value of GS. This function is only available on\r
+  IA-32 and x64.\r
+\r
+  @return The current value of GS.\r
+\r
+**/\r
 UINT16\r
 EFIAPI\r
 AsmReadGs (\r
@@ -26,4 +36,3 @@ AsmReadGs (
   }\r
 }\r
 \r
-#endif\r